The Naval History and Heritage Command recently unveiled dozens of scanned glass slides from the Spanish-American War and the Philippine Insurrection.

The newly rediscovered photographs cover a wide range of topics -- leaders like William McKinley, president during the war, and Admiral George Dewey, who led the battle of Manila Bay, are shown in portrait, while images of ships and nameless crew members are also included. Enjoy this sample of gallery images, courtesy of the U.S. Navy. You can find more photos from this series on the Naval History and Heritage Command's Flickr site.